Table 1 Mean and standard deviation (SD) of POBS values of the experimental groups

2.977 (1.332)^†

1.772 (0.528)^†

2.395 (1.180)

3.122 (1.927)^†

6.141 (3.067)^†

4.684 (2.964)

3.539 (2.516)

3.718 (2.096)^†

1.755 (0.999)^†

2.703 (1.880)

4.738 (2.770)^†

4.121 (1.866)^†

4.429 (2.341)

3.581 (2.282)

4.312 (1.635)^†

1.381 (0.523)^†

2.846 (1.909)

6.083 (3.350)^†

4.078 (2.191)^†

5.081 (2.962)

3.963 (2.715)

6.189 (2.215)^‡

3.128 (1.436)^‡

4.658 (2.405)

4.756 (2.793)^†

4.224 (2.157)^†

4.490 (2.466)

4.574 (2.417)

4.309 (2.168)^*

2.013 (1.151)

3.161 (2.077)

4.701 (2.893)

4.641 (2.463)

4.671 (2.674)

3.919 (2.507)

4.701 (1.618)

3.338 (2.329)